Patents by Inventor Harshrai Krishnarao Chati

Harshrai Krishnarao Chati has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reduction of sulfur-containing gases during conversion of coal into metallurgical coke
    Patent number: 7731821
    Abstract: A method of reducing sulfur-containing gases during conversion of a coal slab into metallurgical coke is disclosed. A sulfur-reducing agent is added to a coal slab, which may contain compacted coal aggregate. The coal slab, including the sulfur-reducing agent, is heated to produce metallurgical coke, which results in a reduced amount of sulfur-containing gases relative to an amount of sulfur-containing gases that would be produced by converting the coal slab into metallurgical coke without adding the sulfur-reducing agent to the coal slab before the coal slab is heated. The sulfur-reducing agent may be applied as a coating to the coal slab. The sulfur-reducing agent may include at least one of calcium carbonate, limestone, lime, magnesium carbonate, magnesium oxide, and the like.
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: June 8, 2010
    Assignee: Sesa Goa Limited
    Inventors: Harshrai Krishnarao Chati, Gokuldas P. Kamat, Peter Francis Xavier D'Lima, Yong-Wu Kim